Moxifloxacin Impurity 42 CAS CATO-C4X-107442
| CAS No. | CATO-C4X-107442 |
| Molecular Formula | 2*C21H24FN3O4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Moxifloxacin Impurity 42 (C21H24FN3O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Moxifloxacin Impurity 42 (CAS CATO-C4X-107442) is a certified pharmaceutical impurity reference standard with the molecular formula C21H24FN3O4 and a molecular weight of 401.44 g/mol.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | 2*C21H24FN3O4 |
| Molecular Weight | 401.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Moxifloxacin Standards
- Moxifloxacin Impurity 62 (CAS 1003709-80-5)
- Moxifloxacin Impurity Ⅻ (CAS 100872-65-9)
- Moxifloxacin impurity 203 (CAS 1027303-55-4)
- Moxifloxacin EP Impurity B (CAS 1029364-73-5)
- Moxifloxacin Hydrochloride EP Impurity C (CAS 1029364-75-7)
- Moxifloxacin EP Impurity D (CAS 1029364-77-9)
- Moxifloxacin Impurity N45 (CAS 1042641-60-0)
- Moxifloxacin impurity 175 (CAS 104599-90-8)
Recommended Standards
- Ritalin impurity 5 (CAS CATO-C4X-28815)
- Lifitegrast Impurity 151 (CAS CATO-C4X-2409151)
- Pregabalin Impurity 73 (CAS CATO-C4X-131273)
- 6-Chloro-7-fluorochroman-4-one (CAS 1092349-25-1)
- 1-(Piperidin-3-ylmethyl)piperidine (CAS 81310-56-7)
- 2-(3-Methylphenoxy)-1-{4-[6-(trifluoromethyl)pyrimidin-4-yl]piperazin-1-yl}ethan-1-one (CAS 1775453-37-6)
- Procymidone (CAS 32809-16-8)
- 3,5-Bis(benzyloxy)picolinic acid (CAS 1000025-93-3)
- 4'-(Trifluoromethyl)-[1,1'-biphenyl]-3-sulfonyl chloride (CAS 731779-91-2)
- Tirzepatide (CAS 2023788-19-2)
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